drm/amdgpu: Support passing amdgpu critical error to host via GPU Mailbox.

This feature works for SRIOV enviroment. For non-SRIOV enviroment, the
trans_error function does nothing.

The error information includes error_code (16bit), error_flags(16bit)
and error_data(64bit). Since there are not many errors, we keep the
errors in an array and transfer all errors to Host before amdgpu
initialization function (amdgpu_device_init) exit.

Signed-off-by: Gavin Wan <Gavin.Wan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h
index 9aefc44d2c34..1e91b9a1c591 100644
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h
@@ -31,7 +31,9 @@ enum idh_request {
         IDH_REL_GPU_INIT_ACCESS,
         IDH_REQ_GPU_FINI_ACCESS,
         IDH_REL_GPU_FINI_ACCESS,
-        IDH_REQ_GPU_RESET_ACCESS
+        IDH_REQ_GPU_RESET_ACCESS,
+
+        IDH_LOG_VF_ERROR       = 200,
 };
 
 enum idh_event {